Visually model relational tables, primary & foreign keys, and export to SQL DDL, Prisma, or Mermaid ERD.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Add database tables and configure column names, data types, and primary key flags.
Link foreign key columns to target tables to model 1:1 and 1:N relational references.
Download or copy production SQL DDL, Prisma Schema, Drizzle ORM TypeScript, or Mermaid ER diagrams.
Yes! Switch to the Schema Code Generator tab to copy one-click schemas for Prisma, Drizzle ORM, raw PostgreSQL/MySQL DDL, and Mermaid diagrams.
No. All database modeling, diagram rendering, and schema compilation operate 100% locally in your browser with zero network egress.
Yes, it supports UUID, VARCHAR, INTEGER, BIGINT, BOOLEAN, TIMESTAMP, TEXT, and FLOAT types with nullable and unique constraint flags.
Zero-egress companion tools in the Developer Tools suite
Format, validate, repair, and minify JSON data instantly.
Decode, verify claims, inspect headers, and check token expiry.
Test regex patterns with flags, group captures, and live matches.
Compare text or source code side-by-side with visual diffs.
